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Ethyl imidazole-2-carboxylate

CAS No.
33543-78-1
Chemical Name:
Ethyl imidazole-2-carboxylate
Synonyms
Ethyl 1H-imidazole-2-carboxylate;RARECHEM AL BI 0666;2-Carboethoxyimidazole;Ethyl imidazole-2-formate;Ethyl 2-IMidazolecarboxylate;Ethyl imidaxole-2-carbolylate;Ethyl imidazole-2-carboxylate;Ethyl2-Imidazolecarboxylate>2-(Ethoxycarbonyl)-1H-imidazole;Ethyl 1H-imidazol-2-carboxylate
CBNumber:
CB6338165
Molecular Formula:
C6H8N2O2
Molecular Weight:
140.14
MDL Number:
MFCD03426031
MOL File:
33543-78-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:13

Ethyl imidazole-2-carboxylate Properties

Melting point 176-178°C
Boiling point 48-51°C 0,3mm
Density 1.214±0.06 g/cm3(Predicted)
Flash point 48-51°C/0.3mm
storage temp. Inert atmosphere,Room Temperature
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
pka 11.38±0.10(Predicted)
color Off-White to Pale Beige
BRN 115685
InChI InChI=1S/C6H8N2O2/c1-2-10-6(9)5-7-3-4-8-5/h3-4H,2H2,1H3,(H,7,8)
InChIKey UHYNYIGCGVDBTC-UHFFFAOYSA-N
SMILES C1(C(OCC)=O)NC=CN=1
CAS DataBase Reference 33543-78-1(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37
Hazard Note  Irritant
HS Code  29332900
NFPA 704
1
2 0

Ethyl imidazole-2-carboxylate price More Price(68)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical E0952 Ethyl 2-Imidazolecarboxylate >98.0%(GC)(T) 33543-78-1 1g $68 2026-04-30 Buy
TCI Chemical E0952 Ethyl 2-Imidazolecarboxylate >98.0%(GC)(T) 33543-78-1 5g $197 2026-04-30 Buy
Usbiological 449658 Ethyl Imidazole-2-carboxylate 33543-78-1 1g $326 2026-06-03 Buy
Usbiological 449658 Ethyl Imidazole-2-carboxylate 33543-78-1 2.5g $439 2026-06-03 Buy
Usbiological 275635 Ethyl imidazole-2-caRboxylate Asreported 33543-78-1 2g $353 2026-06-03 Buy
Product number Packaging Price Buy
E0952 1g $68 Buy
E0952 5g $197 Buy
449658 1g $326 Buy
449658 2.5g $439 Buy
275635 2g $353 Buy

Ethyl imidazole-2-carboxylate Chemical Properties, Uses, Production

Chemical Properties

Light brown powder

Uses

Ethyl Imidazole-2-carboxylate is an intermediate used to synthesize tricyclic quinoxalinone inhibitors of poly(ADP-ribose)polymerase-1 (PARP-1). It is also used to prepare imidazoindenopyrazinone carboxylic acid derivatives as AMPA antagonists with anticonvulsant activities.

Synthesis Reference(s)

The Journal of Organic Chemistry, 60, p. 1090, 1995 DOI: 10.1021/jo00109a052

Synthesis

Ethanol

64-17-5

2-(trichloromethyl)-1H-imidazole

163769-73-1

ETHYL IMIDAZOLE-2-CARBOXYLATE

33543-78-1

The above residue was dissolved in ethanol (300 mL). Concentrated sulfuric acid (98%, 30 mL, 522 mmol, 2.76 eq.) was added slowly and dropwise with stirring while controlling the reaction temperature to not exceed 25°C. The reaction mixture was heated and refluxed and stirred for 7 hours, followed by continued stirring at room temperature overnight. Upon completion of the reaction, ethanol was removed by distillation under reduced pressure. The resulting suspension was diluted with ice water (200 mL) and the pH was adjusted to 5-6 with concentrated ammonia, keeping the temperature below 5 °C during the process. The solid product was collected by filtration, washed with water (10 mL x 3) and dried under vacuum to give the first crude product (10 g). The filtrate was extracted with ethyl acetate (200 mL×2), the organic phases were combined, washed with saturated brine, dried with anhydrous sodium sulfate and filtered. The filtrate was concentrated under reduced pressure, combined with the first batch of crude product, and finally recrystallized in isopropyl ether to obtain ethyl 1H-imidazole-2-carboxylate (18 g, yield 64.3%).

References

[1] Patent: WO2013/12915, 2013, A1. Location in patent: Paragraph 00945
[2] Journal of Organic Chemistry, 1995, vol. 60, # 4, p. 1090 - 1092
[3] Patent: WO2011/146882, 2011, A1. Location in patent: Page/Page column 108-109

288-32-4
124-38-9
75-03-6
33543-78-1
Synthesis of Ethyl imidazole-2-carboxylate from Imidazole and Carbon dioxide and Iodoethane

Ethyl imidazole-2-carboxylate Preparation Products And Raw materials

Global Suppliers ( 245)
Supplier Tel Email Country ProdList Advantage
THchemica Co.,Ltd. 0573-82835115 18969301519 tly1019@126.com China 276 58
Shandong Meiao Huawei Technology Co., LTD 0531-88682301 18595278766 yuhongmeng@mayowell.com China 88 58
Weifang Yuda Pharmaceutical Technology Co., Ltd. 17663603912 2710256076@qq.com China 119 56
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60

View Latest Price from Ethyl imidazole-2-carboxylate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
 ETHYL IMIDAZOLE-2-CARBOXYLATE pictures 2019-07-06 ETHYL IMIDAZOLE-2-CARBOXYLATE
33543-78-1
$8.00 1kg 99% 10tons Career Henan Chemical Co
RARECHEM AL BI 0666 1H-IMIDAZOLE-2-CARBOXYLIC ACID ETHYL ESTER Imidazole-2-carboxylic acid ethyl ester 2-(Ethoxycarbonyl)-1H-imidazole Ethyl 2-IMidazolecarboxylate Ethylimidazole-2-carboxylate,97% 2-Carboethoxyimidazole 2-Imidazolecarboxylic acid ethyl ester, 98% Ethyl2-Imidazolecarboxylate> Ethyl imidaxole-2-carbolylate Ethyl imidazole-2-formate Ethyl imidazole-2-carboxylate, Imidazole-2-carboxylic acid ethyl ester, Ethyl 1H-imidazole-2-carboxylate Ethyl imidazole-2-carboxylate, 95% Ethyl 1H-imidazol-2-carboxylate Ethyl 1H-imidazole-2-carboxylate Ethyl imidazole-2-carboxylate 33543-78-1